Auto merge of #5855 - Manishearth:nomove, r=kmc,munksgaard

fixes #5724, #5737


uses https://github.com/Manishearth/rust-tenacious (can be moved in-tree if needed)

I can make it `Deny` by default too (I'll add a cargo feature to tenacious), though we might want it on
`Warn` until we get some mileage on it.

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1 files changed, 1 insertions, 1 deletions

diff --git a/components/script/dom/domimplementation.rs b/components/script/dom/domimplementation.rs
index 07eb80561bf..6a871f992c2 100644
--- a/components/script/dom/domimplementation.rs
+++ b/components/script/dom/domimplementation.rs
@@ -92,7 +92,7 @@ impl<'a> DOMImplementationMethods for JSRef<'a, DOMImplementation> {
             // Step 5.
             match maybe_elem.root() {
                 None => (),
-                Some(elem) => {
+                Some(ref elem) => {
                     assert!(doc_node.AppendChild(NodeCast::from_ref(elem.r())).is_ok())
                 }
             }